/Engine/Source/Runtime/AudioMixerCore/Public/AudioMixer.h
Structure to hold platform device information
struct FAudioPlatformDeviceInfo
uint8:  1
bIsSystemDefault
Whether or not this device is the system default
FString
DeviceId
ID of the device.
EAudioMixerStre...
Format
The data format of the audio stream
FString
Name
The name of the audio device
int32
NumChannels
The number of channels supported by the audio device
TArray<EAudioM...
OutputChannelArray
The output channel array of the audio device
int32
SampleRate
The sample rate of the audio device